Compliance record
Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.
| Violation | Type | Status | Period |
|---|---|---|---|
| TT | Health-based | Resolved | 2022-07-01 |
| TT | Health-based | Resolved | 2022-07-01 |
| TT | Health-based | Resolved | 2022-07-01 |
| TT | Health-based | Resolved | 2022-07-01 |
| MCL | Health-based | Resolved | 2022-01-01 → 2022-03-31 |
| MCL | Health-based | Resolved | 2022-01-01 → 2022-03-31 |
| MCL | Health-based | Resolved | 2022-01-01 → 2022-03-31 |
| MCL | Health-based | Resolved | 2022-01-01 → 2022-03-31 |
| MCL | Health-based | Resolved | 2022-01-01 → 2022-03-31 |
| MCL | Health-based | Resolved | 2021-10-01 → 2021-12-31 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Arsenic | 17.1 µg/L 171% of the EPA limit, at the 95th percentile of samples — 10 µg/L
worst single sample: 23.9 µg/L | 34/34 | SYR4 | 2012–2019 |
| Copper | 252.4 µg/L 19% of the EPA limit 1300 µg/L
worst single sample: 488 µg/L | 20/20 | SYR4 | 2012–2019 |
| Nitrate | 3360 µg/L 34% of the EPA limit 10000 µg/L | 18/20 | SYR4 | 2012–2019 |
| Lead | 0.0053 mg/L 35% of the EPA limit 0.0150 mg/L | 17/17 | LCR | 2025 |
| Lead | 18 µg/L 120% of the EPA limit, at the 95th percentile of samples — 15 µg/L | 8/20 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 14.15 µg/L 24% of the EPA limit 60 µg/L
worst single sample: 14.5 µg/L | 3/5 | SYR4 | 2012–2018 |
| Nitrate-Nitrite | 3347 µg/L 33% of the EPA limit 10000 µg/L
worst single sample: 3360 µg/L | 2/2 | SYR4 | 2012–2019 |
| TTHM | 63.215 µg/L 79% of the EPA limit 80 µg/L
worst single sample: 65 µg/L | 2/5 | SYR4 | 2012–2018 |
| Barium | 24 µg/L 1.2% of the EPA limit 2000 µg/L | 1/1 | SYR4 | 2012 |
| Chromium | 3.5 µg/L 3.5% of the EPA limit 100 µg/L | 1/1 | SYR4 | 2012 |
| Combined Radium (-226 And -228) | 0.8000 pCi/L 16% of the EPA limit 5 pCi/L | 1/3 | SYR4 | 2012–2018 |
| Fluoride | 3800 µg/L 95% of the EPA limit 4000 µg/L | 1/1 | SYR4 | 2012 |
59 contaminants tested, none detected
Utility contact
Frequently asked questions about Shepard Water Company
Is Shepard Water Company tap water safe to drink?
EPA monitoring detected 12 contaminants in Shepard Water Company's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.
What contaminants were detected in Shepard Water Company's water?
EPA monitoring detected Arsenic, Copper, Nitrate, Lead, Lead, and others. The full list with the level and data source for each is above.
How many people does Shepard Water Company serve?
Shepard Water Company reports serving 430 people in Arizona, per its EPA record.
Has Shepard Water Company had any water quality violations?
The EPA has 332 violations on file for Shepard Water Company, of which 76 are health-based (a contaminant limit or required treatment was breached) and 3 remain open. The rest are monitoring or reporting failures.
Where does this data come from?
Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.